MC56F8323EVM Freescale Semiconductor, MC56F8323EVM Datasheet - Page 91

• Manufacturer Part Number: MC56F8323EVM
• Description: KIT EVALUATION FOR MC56F8323
• Manufacturer: Freescale Semiconductor
• Type: DSPr

Specifications of MC56F8323EVM

• Contents: Module and Misc Hardware
• Processor To Be Evaluated: MC56F8322 and MC56F8323
• Data Bus Width: 16 bit
• Interface Type: RS-232
• For Use With/related Products: MC56F8322, MC56F8323
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

6.5.7.4
6.5.7.5
6.5.7.6
6.5.7.7
Selects clock to be muxed out on the CLKO pin.
6.5.8
All of the peripheral pins on the 56F8323 and 56F8123 share their I/O with GPIO ports. To select
peripheral or GPIO control, program the GPIOx_PER register. When SPI 0 and SCI 1, Quad Timer C and
SCI 0, or PWMA and SPI 1 are multiplexed, there are two possible peripherals as well as the GPIO
functionality available for control of the I/O. The SIM_GPS register is used to determine which peripheral
has control. The default peripherals are SPI 0, Quad Timer C, and PWMA.
Note: PWM is NOT available in the 56F8123 device.
As shown in
which peripheral will be routed to the I/O.
Freescale Semiconductor
Preliminary
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0 = Peripheral output function of GPIOB[5] is defined to be INDEX0
1 = Peripheral output function of GPIOB[5] is defined to be SYS_CLK
0 = Peripheral output function of GPIOB[4] is defined to be HOME0
1 = Peripheral output function of GPIOB[4] is defined to be the prescaler clock (FREF, see
0 = CLKOUT output is enabled and will output the signal indicated by CLKOSEL
1 = CLKOUT is tri-stated
00000 = SYS_CLK (from ROCS - DEFAULT)
00001 = Reserved for factory test—56800E clock
00010 = Reserved for factory test—XRAM clock
00011 = Reserved for factory test—PFLASH odd clock
00100 = Reserved for factory test—PFLASH even clock
00101 = Reserved for factory test—BFLASH clock
00110 = Reserved for factory test—DFLASH clock
00111 = MSTR_OSC Oscillator output
01000 = F
01001 = Reserved for factory test—IPB clock
01010 = Reserved for factory test—Feedback (from OCCS, this is path to PLL)
01011 = Reserved for factory test—Prescaler clock (from OCCS)
01100 = Reserved for factory test—Postscaler clock (from OCCS)
01101 = Reserved for factory test—SYS_CLK2 (from OCCS)
01110 = Reserved for factory test—SYS_CLK_DIV2
01111 = Reserved for factory test—SYS_CLK_D
10000 = ADCA clock
SIM GPIO Peripheral Select Register (SIM_GPS)
INDEX0 (INDEX)—Bit 7
HOME0 (HOME)—Bit 6
Clockout Disable (CLKDIS)—Bit 5
CLockout Select (CLKOSEL)—Bits 4–0
Figure
out
(from OCCS)
6-10, the GPIO has the final control over the pin function. SIM_GPS simply decides
56F8323 Technical Data, Rev. 17
Register Descriptions
Figure
3-4)
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